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Family Menispermaceae
Silong-pugo
Pericampylus glaucus (Lam.) Merr.

BROAD-LEAVED MOONSEED
Xi yuan teng

Scientific names   Common names  
Menispermum glaucum Lam.  Botang-botang (C. Bis.)
Pericampylus formosanus Diels Gapisilid (Sub.)
Pericampylus glaucus (Lam.) Merr. Hah-un (Yak.)
Pericampylus omeiensis W.Y. Lien. Ha-un (Sul.)
Pericampylus trinervatus Yamam. Lagauat (Bag.)
  Pamago (Bik.)
  Pisok (Ig.)
  Silong-pugo (Tag.)
  Tugian-tugian (Tag.)
  Broad-leaved moonseed (Engl.)
Pericampylus glaucus (Lam.) Merr. is an accepted name. The Plant List

Other vernacular names
CHINESE: Guang teng, Xi yuan teng.
INDIA: Havunanji gida.
INDONESIA: Areuy geureung (Sundanese), Celuru (Javanese), Akar gamat (Moluccas).
JAPANESE: Horai-tsuzura-fuji.
MALAYSIA: Gasing gasing, Kelempenang, Taworuk, Ketutu, Daun dada kura-kura.
NEPALESE: Pipal pati.
THAI: Salit hom kha, Yan tap tao.
VIETNAM: Ch[aa]u d[ar]o, D[aa]y l[ox]i ti[eef]n.

Botany
Silong-pugo is a climbing shrub, with hairy branchlets when young. Leaves are thin, pale or subglaucous beneath, broadly ovate or nearly round, 5 to 8 centimeters wide, truncately rounded or heart-shaped at the base, sometimes slightly peltate, and pointed at the apex, with 5 basal nerves, and tomentose. Cymes or panicles are 2- to 3-chotomous. Flowers are numerous and yellow. Fruit is rounded, pea-sized, red or purplish, becoming black when ripe. Seeds are kidney-shaped, with crested edges.

Distribution
- Throughout the Philippines in open thickets at low and medium altitudes.
- Also reported in India through Malaya to the Moluccas.

Constituents
- Study of aerial parts yielded four new hasubanane-type alkaloids, periglaucines A-D (1-4), three known alkaloids, norruffscine (5), (-)-8-oxotetrahydropalmatine (6), and (-)-8-oxocanadine (7). (see study below) (1)
- Study yielded 5 triterpenes: hopenone-B, hopenol-B, 22-hydroxyhopan-3-one, erythrodiol 3-palmitate, and 5β,24-cyclofriedelan-3-one. (see study below) (3)
- Study of ethanolic extract of leaves for total phenolics and total flavonoids content yielded 52.51 mg/gm with percentage yield as 5.20% w/w mg gallic acid equivalents/g and 51.70 mg/gm with 5.17% yield w/w mg rutin equivalents/g, respectively. (see study below) (12)

Properties
- Roots are narcotic; contains an alkaloid.

Parts utilized:
Leaves and roots.

Uses
Folkloric
- Roots used as antidote for snake bites.
- Leaves applied to the head for headaches.
- Also used for asthma and coughs.

- In China, leaves used for treatment of tumors, itches, tetanus, eclampsia.
- In Malaysia, used for treatment of conjunctivitis.
- Used for rheumatic pains, fractures, boils, and tumors.

Studies
Periglaucines / Anti-Hepatitis B / Anti-HIV Alkaloids: Study isolated four new hasubanane-type alkaloids, periglaucines A-D (1-4) and three known alkaloids. Alkaloids 1-4 inhibited hepatitis B virus (HBV) surface antigen (HBsAg) secretion in Hep G2.2.15 cells. Two alkaloids, norruffscine and (-)-8-oxotetrahydropalmatine, exhibited inhibitory activity against human immunodeficiency virus (HIV-1) with EC50 of 10.9 and 14.1 µM in C8166 cells, respectively. (see constituents above) (1)
Chemical Constituents: Study of rhizomes yielded six cyrstalline substances: epifriedelinol, mellisic acid, palmatic acid, stearic acid, bututic acid and daucosterol. (2)
Triterpenoidal Constituents / Antitumor Activity: Study yielded five triterpenes. Compound 4, erythrodiol 3-palmitate, inhibited the proliferation of K562 cells. (see constituents above) (3)
• Acute and Subacute Toxicity Studies: Study evaluated the safety dose range of ethanolic extract of leaves of P. glaucus in a BALB/c mice model. In acute toxicity testing, there was no mortality or any significant alteration in behavior other than drowsiness, sedation and lethargy at 2,000 and 4,000 mg/kg test dose of extract. In subacute toxicity testing, there no changes in hematological and biochemical parameters and organ body weight. Results suggest safety for therapeutic use of the extract in pharmaceutical formulations. (8)
• Antihyperlipidemic Potential: Study evaluated an ethanolic extract of P. glaucus on biochemical parameters in high fat-diet treated male Sprague-Dawley rats. Results showed different doses of the ethanol extract induced significant reduction in body weight, total cholesterol, TG,LDL, and uric acid levels, together with an increase in HDL. Results suggest antihyperlipidemic potential. (9)
• Amoebicidal Activity / Periglaucine A and Betulinic Acid: Study evaluated the amoebicidal effects of different fractions of Pericampylus glaucus against pathogenic Acanthamoeba triangularis isolated from environmental water supplies. Betulinic acid and periglaucine A from the plant inhibited more than 70% survival of both cysts and trophozoites. Therapeutic index of periglaucine A suggests it could be of value in the treatment of acanthamoeba infection. (10)
• Anti-Inflammatory Activity / Activity Against Nasopharyngeal Carcinoma: Study evaluated various extracts of stems, leaves, roots, and fruits of PG for anti-inflammatory activity. Results showed most of the extracts exhibited inhibitory activity towards both of the COX systems. Cytotoxicity was tested using human lung epithelial cell line MRC-5 and nasopharyngeal carcinoma cell line HK1 in MTT assay. (11)
• Antioxidant / Leaves: Study of crude ethanolic extract of leaves for antioxidant activity showed good radical scavenging activity on DPPH assay, but less than ascorbic acid standard. The extract showed concentration-dependent increase in reducing power. (See constituents above) (12)
• Anti-Diabetic / Antihyperlipidemic: Study evaluated the effects of PG extract on plasma glucose concentration and lipid profile in STZ-induced diabetic rats. In short- and long-term studies, results showed significant (p<0.01, p<0.001) anti-diabetic activity in normal and diabetic rats. There was also reduction in TC, TG, and LDL, together with improvement in HDL level. (13)
• Antidiabetic Compound: Study evaluated the antidiabetic activity of the compound benzoic 2-[{trimethylsilyl) oxy]-,methyl ester (cas) methyl o-trimethyl-silylsalicylate isolated by fractionation. In vivo study in STZ-induced diabetic rats showed the compound possesses significant hypoglycemic properties with a potential for use in the management of diabetes. (14)
• Anitmalarial: Study screened plants that can effectively inhibit P. falcifarum 3D7, a common lab strain malarial parasite. Of 24 crude plant extracts, A crassifolius, L. eugeniifolia, and Pericampylus glaucus showed promising antiplasmodial activities at IC50 of 15.32 to 39.75 µg/mL. Results suggest further studies to explore for efficacies and lead compounds. (15)
• Anti-Tumor Activity / Secondary Metabolites: Study isolated five triterpenoids viz., Hopenone-B (1), hopenol-B (2), 22-Hydroxyhopan-3-one (3), erythrodiol 3-palmitate (4) and 5β,24-cyclofriedelan-3-one(5). Compound 4 inhibited the proliferation of K562 cells with an inhibition rate of 47% at 100 µg/mL. (16)

Availability
Wild-crafted.

Updated December 2017 /June 2013

MAGE SOURCE: / Illustration / Pericampylus glaucus (Lam.) Merr. [as Folium lunatum minus] Rumphius, G.E., Herbarium amboinense, vol. 5: p. 40, t. 25, fig. 1 (1747) / PlantIllustrations.org
SOURCES

Additional Sources and Suggested Readings
(1)
Periglaucines A-D, Anti-HBV and -HIV-1 Alkaloids from Pericampylus glaucus
/ Yan MH, Cheng P, Jiang ZY, Ma YB, Zhang XM, Zhang FX, Yang LM, Zheng YT, Chen JJ / Journal of natural products 71(5):760-3, 2008 May

(2)
Chemical constituents of Pericampylus glaucus (Lam.) Merr./ Liang P, Zhou Q, Zhou F. / Zhongguo Zhong Yao Za Zhi. 1998 Jan;23(1):39-40, 63.
(3)
Triterpenoidal constituents of Pericampylus glaucus and their antitumor activity in vitro / Zhao Wei-quan, Cui Cheng-bin / Chinese Journal of Medicinal Chemistry, 2009-03
(4)
Pericampylus glaucus (Lam.) Merr. (accepted name) / Chinese names / Catalogue of Life, China
(5)
Pericampylus glaucus (Lamk) Merr. / Vernacular names / GLOBinMED
(6)
Secondary Metabolites and Their Anti-tumor Activity from Pericampylus Galucus and Three Actinomycetic Antibiotic-resistent Strains / ZhaoWeiQuan / Thesis, 2008
(7)
Pericampylus gglaucus / Synonyms / The Plant List
(8)
Evaluation of the acute and sub-acute toxicity of the ethanolic extract of Pericampylus glaucus (Lam.) Merr. in BALB/c mice / Muhammad Kifayatullah, Mohd. Shahim Mustafa, Pinaki Sengupta, Md. Moklesur Rahman Sarker, Arindam Das, Sreemoy Kanti Das / Journal of Acute Disease, Vol 4, Issue 4, October 2015, pp 309-315 / https://doi.org/10.1016/j.joad.2015.06.010
(9)
Effect of ethanolic extract of Pericampylus glaucus (Lam) Merr on biochemical parameters in SpragueDawley rats with high fats diets / Kifayatullah Muhammad, Mustapha Mohd Shahimi, Aravinth Vijay Jesurai, Sengupta Pinaki, Khan Muhammad Shahid, Kaleemullah / Journal of Coastal Life Medicine, Volume 5, Number 5, 2017, pp. 219-223 / DOI: https://doi.org/10.12980/jclm.5.2017J7-4
(10)
Acanthamoebicidal activity of periglaucine A and betulinic acid from Pericampylus glaucus (Lam.) Merr. in vitro. / Mahboob T, Azlan AM, Shipton FN, Boonroumakaew P, Nor Azman NS, Sekaran SD, Ithoi I, Tan TC, Samudi C, Wiart C, Nissapotorn V / Exp Parasitol. 2017 Dec; 183: pp 160-166. / doi: 10.1016/j.exppara.2017.09.002.
(11)
Activity of Pericampylus glaucus and periglaucine A in vitro against nasopharangeal carcinoma and anti-inflammatory activity. / Shipton FN, Khoo TJ, Hossan MS, Wiart C / J Ethnopharmacol. 2017 Feb 23;198:91-97. / doi: 10.1016/j.jep.2016.12.045
(12)
Evaluation of Ethanolic Extract of Pericampylus glaucus (Lamk.) Merr for Total Phenolic, Total Flavonoids Contents and In-vitro Anti - Oxidant Activity / Muhammad Kifayatullah*, Pinaki Senguptha, Mohd. Shahimi Mustafa, Sreemoy Kanti Das, Mrutunjay Sisugoswomi / International Journal of Pharmacognosy and Phytochemical Research 2015; 7(4); 677-683
(13)
Effect of Pericampylus glaucus on plasma glucose concentration and lipid profile in streptozotocin-induced diabetic rats / Muhammad Kifayatullah, Pinaki Sengupta / Bangladesh Journal of Pharmacology, Vol 11, No 1 (2016)
(14)
Anti-diabetic Activity of Compound "2-[(trimethylsilyl) oxy]-,methyl ester (cas) methyl o-trimethyl-silylsalicylate" Isolated from Pericampylus glaucus (Lam) Merr in STZ-Induced Diabetic Rats / Muhammad Kifayatullah, Mohd Shahimi Mustapha, Kaleemullah, Muhammad Shahid Khan / Journal of Basic and Clinical Pharmacy
(15)
A preliminary screening of potentially antimalarial plants against Plasmodium falciparum in vitro. / Khaw LT, Leerach N, Yap NJ, Jaturas N, Mahboob T, Tan TC, Dungca JZ, Los Baños ZD, Sitthisak S, Chow SC, Lim YA, Sawangiaroen N, Wiart C, Nikssapatorn V /  Tropical Biomedicine 2015 Vol.32 No.4 pp.676-683 ref.36 / http://www.msptm.org/files/676-683_Kh.
(16)
Secondary Metabolites and Their Anti-tumor Activity from Pericampylus Galucus and Three Actinomycetic Antibiotic-resistent Strains / Zhao Wei Quan / Thesis 2008 / PLA Military Academy of Medical Sciences






 







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